Science

After a concussion, the brain may no longer make sense of sounds
A concussion can make it difficult to converse in a noisy room. Scientists say that's because the injury has impaired the brain's ability to process sounds.
New chronic wasting disease test: Game-changer or unproven?
As Minnesota officials work to contain the spread of chronic wasting disease in deer, research is developing new technology that can help track the disease. But there's disagreement over how and when to use the technology.
FDA OKs mixing COVID vaccines; backs Moderna, J and J boosters
U.S. regulators are extending COVID-19 boosters to Americans who got the Moderna or Johnson & Johnson vaccine. They also said Wednesday anyone eligible for an extra dose can get a brand different from the one they received initially.
From Minnesota to Mexico: How do monarchs know where and when to go?
Monarch butterflies, Minnesota’s official state butterfly, spend their summer throughout the Midwest and migrate to Mexico in the fall to avoid the freezing winters. Most have already embarked on their more than 2,500-mile trek south to the sacred pine forests of central Mexico. Hear more about their journey.